Given:
The equation of a parabola is:

To find:
The vertex of the graph of the given equation by using a graphing calculator.
Solution:
We have,

By using the graphing calculator, draw the graph of the given equation as shown below.
From the below graph it is clear that the function is maximum at point (1.75,10.125).
So, the vertex of the given equation is (1.75,10.125).
Therefore, the correct option is c.
Answer:
4.25
Step-by-step explanation:
The distance Bethany travels is directly proportional to the number of hours she spends working
The formula for direct proportion is :
y = kx
Where k is a constant
in this question, the constant is given by 4.25
Answer:

Step-by-step explanation:
you just need to forget about 0 because whole equation is raised to 0
and anything raise to 0 is 1
so
law of exponent
÷
= 
here
÷
= 
= 
so the answer will be

Area = base * height = 35 square inches
When we make the dimensions 2.5 by 3.5 then,area = 2.5 * 3.5 = 8.75 square inches
35 / 8.75 = 4So, when we reduce the width AND the height by 2, the area decreases by 4.Why? Because when we are reducing 2 dimensions:area = width/ 2 * length / 2 = area / 4